Light–matter interactions in two-dimensional layered WSe₂ for gauging evolution of phonon dynamics

• Avra S. Bandyopadhyay,
• Chandan Biswas and
• Anupama B. Kaul

Beilstein J. Nanotechnol. 2020, 11, 782–797, doi:10.3762/bjnano.11.63

• electronic, optoelectronic and thermoelectric devices in the future. Keywords: phonon concentration; phonon lifetime; Raman spectroscopy; thermal coefficients; Tungsten diselenide; two-dimensional material; Introduction Since the discovery of graphene, atomically thin two-dimensional layered materials have

• limited with only one prior report discussing the thermal coefficients of various Raman modes in WSe2 where a comparative analysis of temperature-dependent Raman modes in WSe2 and MoSe2 was presented [28]. Moreover, the study related to the phonon lifetime in WSe2 is also limited, among which one prior